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	<div id="pagetitle"><h1>YUI Library Examples: DataSource Utility: DataSource.Get</h1></div>
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	<h2>DataSource Utility: DataSource.Get</h2>

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	<div class="example-intro">
	DataSource.Get uses the Get Utility to retrieve data, even cross-domain resources, via a dynamically created script node. A <a href="http://developer.yahoo.com/yui/3/dataschema/">DataSchema</a> plugin is used to normalize incoming data into a known format for consistency of usage by other components. Please note that your data resource must support a callback mechanism, which is a function wrapper around the returned data. The name of the callback function is passed to the resource via a query string parameter defined by the DataSource.Get attribute <code>scriptCallbackParam</code>.
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                <a href="datasource_get_clean.html" target="_blank">View example in new window.</a>
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	<!--BEGIN SOURCE CODE FOR EXAMPLE =============================== -->
	
	<form id="demo">
    <h4>JSON</h4>
    <h6>Data</h6>
    <pre>
{
    "query":{
        "count":"10",
        "created":"2009-06-04T05:15:06Z",
        "lang":"en-US",
        "updated":"2009-06-04T05:15:06Z",
        "uri":"http://query.yahooapis.com/v1/yql?q=...query%3D%22pizza%22",
        ...
        "results":{
            "result":[
                {
                    ...
                    "dispurl":"www.&lt;b&gt;pizzahut.com&lt;\/b&gt;",
                    "size":"16217",
                    "title":"&lt;b&gt;Pizza&lt;\/b&gt; Hut",
                    "url":"http://www.pizzahut.com/"
                },
                {
                    ...
                    "dispurl":"www.&lt;b&gt;dominos.com&lt;\/b&gt;",
                    "size":"29739",
                    "title":"Domino's &lt;b&gt;Pizza&lt;\/b&gt;",
                    "url":"http://www.dominos.com/"
                },
                {
                    ...
                    "dispurl":"&lt;b&gt;mobile.papajohns.com&lt;\/b&gt;",
                    "size":"2315",
                    "title":"Papa John's Mobile Web",
                    "url":"https://mobile.papajohns.com/"
                },
                ...
            ]
        }
    }
}
    </pre>

    <h6>Schema</h6>
    <pre>
{
    resultListLocator: "query.results.result",
    resultFields: ["title"]
}
    </pre>

    <h6>Normalized data</h6>
    <input type="button" id="demo_json" value="Retrieve data =>">
    <div id="demo_output_json" class="output"></div>
</form>

<script type="text/javascript">
YUI().use("dump", "node", "datasource-get", "datasource-jsonschema", "datasource-xmlschema", function (Y) {
    var myDataSource = new Y.DataSource.Get({source:"http://query.yahooapis.com/v1/public/yql?format=json&"}),
        myCallback = {
            success: function(e){
                Y.one("#demo_output_json").setContent(Y.dump(e.response).replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;"));
            },
            failure: function(e){
                Y.one("#demo_output_json").setContent("Could not retrieve data: " + e.error.message);
            }
        };

    myDataSource.plug(Y.Plugin.DataSourceJSONSchema, {
        schema: {
            resultListLocator: "query.results.result",
            resultFields: ["title"]
        }
    });

    Y.on("click", function(e){
        myDataSource.sendRequest({
            request:"q=select%20*%20from%20search.web%20where%20query%3D%22pizza%22",
            callback:myCallback
        });
    }, "#demo_json");
});
</script>
	
	<!--END SOURCE CODE FOR EXAMPLE =============================== -->
	
		
		</div>
	</div>			
	</div>
		
	<p>Use a DataSourceJSONSchema plugin to parse the data against a schema that you provide:</p>

<div id="syntax-804ae86a53799bb16fa5ad852a17e3e3" class="yui-syntax-highlight"><div class="numbers"><pre class="javascript" style="font-family:monospace;"><ol><li class="li1"><div class="de1">YUI<span class="br0">&#40;</span><span class="br0">&#41;</span>.<span class="kw2">use</span><span class="br0">&#40;</span><span class="st0">&quot;datasource-get&quot;</span><span class="sy0">,</span> <span class="st0">&quot;datasource-jsonschema&quot;</span><span class="sy0">,</span> <span class="kw2">function</span><span class="br0">&#40;</span>Y<span class="br0">&#41;</span> <span class="br0">&#123;</span></div></li><li class="li1"><div class="de1">    <span class="kw2">var</span> myDataSource <span class="sy0">=</span> <span class="kw2">new</span> Y.<span class="me1">DataSource</span>.<span class="me1">Get</span><span class="br0">&#40;</span><span class="br0">&#123;</span></div></li><li class="li1"><div class="de1">        source<span class="sy0">:</span><span class="st0">&quot;http://query.yahooapis.com/v1/public/yql?format=json&amp;&quot;</span><span class="br0">&#125;</span><span class="br0">&#41;</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1">        myCallback <span class="sy0">=</span> <span class="br0">&#123;</span></div></li><li class="li2"><div class="de2">            success<span class="sy0">:</span> <span class="kw2">function</span><span class="br0">&#40;</span>e<span class="br0">&#41;</span><span class="br0">&#123;</span></div></li><li class="li1"><div class="de1">                <span class="kw3">alert</span><span class="br0">&#40;</span>e.<span class="me1">response</span><span class="br0">&#41;</span><span class="sy0">;</span></div></li><li class="li1"><div class="de1">            <span class="br0">&#125;</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1">            failure<span class="sy0">:</span> <span class="kw2">function</span><span class="br0">&#40;</span>e<span class="br0">&#41;</span><span class="br0">&#123;</span></div></li><li class="li1"><div class="de1">                <span class="kw3">alert</span><span class="br0">&#40;</span><span class="st0">&quot;Could not retrieve data: &quot;</span> <span class="sy0">+</span> e.<span class="me1">error</span>.<span class="me1">message</span><span class="br0">&#41;</span><span class="sy0">;</span></div></li><li class="li2"><div class="de2">            <span class="br0">&#125;</span></div></li><li class="li1"><div class="de1">        <span class="br0">&#125;</span><span class="sy0">;</span></div></li><li class="li1"><div class="de1">&nbsp;</div></li><li class="li1"><div class="de1">    myDataSource.<span class="me1">plug</span><span class="br0">&#40;</span>Y.<span class="me1">Plugin</span>.<span class="me1">DataSourceJSONSchema</span><span class="sy0">,</span> <span class="br0">&#123;</span></div></li><li class="li1"><div class="de1">        schema<span class="sy0">:</span> <span class="br0">&#123;</span></div></li><li class="li2"><div class="de2">            resultListLocator<span class="sy0">:</span> <span class="st0">&quot;query.results.result&quot;</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1">            resultFields<span class="sy0">:</span> <span class="br0">&#91;</span><span class="st0">&quot;title&quot;</span><span class="br0">&#93;</span></div></li><li class="li1"><div class="de1">        <span class="br0">&#125;</span></div></li><li class="li1"><div class="de1">    <span class="br0">&#125;</span><span class="br0">&#41;</span><span class="sy0">;</span></div></li><li class="li1"><div class="de1">&nbsp;</div></li><li class="li2"><div class="de2">    myDataSource.<span class="me1">sendRequest</span><span class="br0">&#40;</span><span class="br0">&#123;</span></div></li><li class="li1"><div class="de1">        request<span class="sy0">:</span><span class="st0">&quot;q=select%20*%20from%20search.web%20where%20query%3D%22pizza%22&quot;</span><span class="sy0">,</span></div></li><li class="li1"><div class="de1">        callback<span class="sy0">:</span>myCallback</div></li><li class="li1"><div class="de1">    <span class="br0">&#125;</span><span class="br0">&#41;</span><span class="sy0">;</span></div></li><li class="li1"><div class="de1"><span class="br0">&#125;</span><span class="br0">&#41;</span><span class="sy0">;</span></div></li></ol></pre></div><div class="nonumbers"><pre class="javascript" style="font-family:monospace;">YUI<span class="br0">&#40;</span><span class="br0">&#41;</span>.<span class="kw2">use</span><span class="br0">&#40;</span><span class="st0">&quot;datasource-get&quot;</span><span class="sy0">,</span> <span class="st0">&quot;datasource-jsonschema&quot;</span><span class="sy0">,</span> <span class="kw2">function</span><span class="br0">&#40;</span>Y<span class="br0">&#41;</span> <span class="br0">&#123;</span>
    <span class="kw2">var</span> myDataSource <span class="sy0">=</span> <span class="kw2">new</span> Y.<span class="me1">DataSource</span>.<span class="me1">Get</span><span class="br0">&#40;</span><span class="br0">&#123;</span>
        source<span class="sy0">:</span><span class="st0">&quot;http://query.yahooapis.com/v1/public/yql?format=json&amp;&quot;</span><span class="br0">&#125;</span><span class="br0">&#41;</span><span class="sy0">,</span>
        myCallback <span class="sy0">=</span> <span class="br0">&#123;</span>
            success<span class="sy0">:</span> <span class="kw2">function</span><span class="br0">&#40;</span>e<span class="br0">&#41;</span><span class="br0">&#123;</span>
                <span class="kw3">alert</span><span class="br0">&#40;</span>e.<span class="me1">response</span><span class="br0">&#41;</span><span class="sy0">;</span>
            <span class="br0">&#125;</span><span class="sy0">,</span>
            failure<span class="sy0">:</span> <span class="kw2">function</span><span class="br0">&#40;</span>e<span class="br0">&#41;</span><span class="br0">&#123;</span>
                <span class="kw3">alert</span><span class="br0">&#40;</span><span class="st0">&quot;Could not retrieve data: &quot;</span> <span class="sy0">+</span> e.<span class="me1">error</span>.<span class="me1">message</span><span class="br0">&#41;</span><span class="sy0">;</span>
            <span class="br0">&#125;</span>
        <span class="br0">&#125;</span><span class="sy0">;</span>
&nbsp;
    myDataSource.<span class="me1">plug</span><span class="br0">&#40;</span>Y.<span class="me1">Plugin</span>.<span class="me1">DataSourceJSONSchema</span><span class="sy0">,</span> <span class="br0">&#123;</span>
        schema<span class="sy0">:</span> <span class="br0">&#123;</span>
            resultListLocator<span class="sy0">:</span> <span class="st0">&quot;query.results.result&quot;</span><span class="sy0">,</span>
            resultFields<span class="sy0">:</span> <span class="br0">&#91;</span><span class="st0">&quot;title&quot;</span><span class="br0">&#93;</span>
        <span class="br0">&#125;</span>
    <span class="br0">&#125;</span><span class="br0">&#41;</span><span class="sy0">;</span>
&nbsp;
    myDataSource.<span class="me1">sendRequest</span><span class="br0">&#40;</span><span class="br0">&#123;</span>
        request<span class="sy0">:</span><span class="st0">&quot;q=select%20*%20from%20search.web%20where%20query%3D%22pizza%22&quot;</span><span class="sy0">,</span>
        callback<span class="sy0">:</span>myCallback
    <span class="br0">&#125;</span><span class="br0">&#41;</span><span class="sy0">;</span>
<span class="br0">&#125;</span><span class="br0">&#41;</span><span class="sy0">;</span></pre></div><textarea id="syntax-804ae86a53799bb16fa5ad852a17e3e3-plain">YUI().use("datasource-get", "datasource-jsonschema", function(Y) {
    var myDataSource = new Y.DataSource.Get({
        source:"http://query.yahooapis.com/v1/public/yql?format=json&"}),
        myCallback = {
            success: function(e){
                alert(e.response);
            },
            failure: function(e){
                alert("Could not retrieve data: " + e.error.message);
            }
        };

    myDataSource.plug(Y.Plugin.DataSourceJSONSchema, {
        schema: {
            resultListLocator: "query.results.result",
            resultFields: ["title"]
        }
    });

    myDataSource.sendRequest({
        request:"q=select%20*%20from%20search.web%20where%20query%3D%22pizza%22",
        callback:myCallback
    });
});</textarea></div>				</div>
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